Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]	Long-term income tax receivable [Member]	PacifiCorp [Member]	PacifiCorp [Member] Preferred Stock [Member]	PacifiCorp [Member] Common Stock [Member]	PacifiCorp [Member] Additional Paid-in Capital [Member]	PacifiCorp [Member] Retained Earnings [Member]	PacifiCorp [Member] Accumulated Other Comprehensive Income (Loss) [Member]	MidAmerican Energy Company [Member]	MidAmerican Energy Company [Member] Common Stock [Member]	MidAmerican Energy Company [Member] Additional Paid-in Capital [Member]	MidAmerican Energy Company [Member] Retained Earnings [Member]	MidAmerican Funding, LLC and Subsidiaries [Domain]	MidAmerican Funding, LLC and Subsidiaries [Domain] Additional Paid-in Capital [Member]	MidAmerican Funding, LLC and Subsidiaries [Domain] Retained Earnings [Member]	Sierra Pacific Power Company [Member]	Sierra Pacific Power Company [Member] Common Stock [Member]	Sierra Pacific Power Company [Member] Additional Paid-in Capital [Member]	Sierra Pacific Power Company [Member] Retained Earnings [Member]	Sierra Pacific Power Company [Member] Accumulated Other Comprehensive Income (Loss) [Member]	Nevada Power Company [Member]	Nevada Power Company [Member] Common Stock [Member]	Nevada Power Company [Member] Additional Paid-in Capital [Member]	Nevada Power Company [Member] Retained Earnings [Member]	Nevada Power Company [Member] Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2015								$ 7,503
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to parent								763
Balance (shares) at Dec. 31, 2016		77,000,000																				1,000					1,000
Balance at Dec. 31, 2016	$ 24,463	$ 0	$ 6,390	$ 19,448	$ (1,511)	$ 136
Balance at Dec. 31, 2016								7,390	$ 2	$ 0	$ 4,479	$ 2,921	$ (12)	$ 5,160	$ 0	$ 561	$ 4,599	$ 6,086	$ 1,679	$ 4,407	$ 1,108	$ 0	$ 1,111	$ (2)	$ (1)	$ 2,972	$ 0	$ 2,308	$ 667	$ (3)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,892	0	0	2,870	0	22
Net income	2,910
Net income (loss) attributable to parent	2,870							768		0	0	768	0	605			605	574		574	109			109		255			255
Other Comprehensive Income (Loss), Net of Tax	1,113	0	0	0	1,113	0		(3)		0	0	0	(3)
Distributions	(22)	0	0	0	0	(22)
Common stock dividends declared								(600)		0	0	(600)	0								(45)			(45)		(548)			(548)
Common stock, value, repurchased	(19)		(1)	(18)
Conversion of Stock, Amount Converted	(100)		(6)	(94)
Other equity transactions	(19)	$ 0	(15)	0	0	(4)								(1)			(1)									(1)				(1)
Balance (shares) at Dec. 31, 2017		77,000,000																				1,000					1,000
Balance at Dec. 31, 2017	28,308	$ 0	6,368	22,206	(398)	132
Balance at Dec. 31, 2017								7,555	2	0	4,479	3,089	(15)	5,764	$ 0	561	5,203	6,660	1,679	4,981	1,172	$ 0	1,111	62	(1)	2,678	$ 0	2,308	374	(4)
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification				1,085	(1,085)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,588	0	0	2,568	0	20
Net income	2,591
Net income (loss) attributable to parent	2,568							738		0	0	738	0	682			682	669		669	92			92		$ 226			226
Other Comprehensive Income (Loss), Net of Tax	(462)	0	0	0	(462)	0		2		0	0	0	2
Reclassification of long-term income tax receivable	(609)
Long-term income tax receivable adjustments	17			(135)			$ 152
Distributions	(23)	0	0	0	0	(23)
Common stock dividends declared								$ (450)		0	0	(450)	0
Common stock, value, repurchased	(107)		(6)	(101)
Other equity transactions	$ 11	$ 0	9	1	0	1															$ 0			(1)	1
Balance (shares) at Dec. 31, 2018	77,000,000	77,000,000						357,000,000							70,980,203						1,000	1,000				1,000	1,000
Balance at Dec. 31, 2018	$ 29,723	$ 0	6,371	25,624	(1,945)	130
Balance at Dec. 31, 2018	29,593							$ 7,845	2	0	4,479	3,377	(13)	6,446	$ 0	561	5,885	7,329	1,679	5,650	$ 1,264	$ 0	1,111	153	0	$ 2,904	$ 0	2,308	600	(4)
Long-term income tax receivable	(457)						(457)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,968	0	0	2,950		18
Net income	2,968
Net income (loss) attributable to parent	2,950							771		0	0	771	0	793			793	781		781	103			103		264			264
Other Comprehensive Income (Loss), Net of Tax	239	0	0	0	239	0		(4)		0	0	(1)	(3)
Distribution to parent																		(8)		(8)
Reclassification of long-term income tax receivable							(609)
Long-term income tax receivable adjustments	(40)		33	0			(73)
Common stock dividends declared								$ (175)		0	0	(175)	0								(46)			(46)		$ (371)			(371)
Common stock, value, repurchased	(293)	0	(15)	(278)	0	0
Conversion of Stock, Amount Converted	(22)	0		0	0	(22)
Other equity transactions	$ 3	$ 0		0	0	3								1			1	(1)		(1)	$ (1)				(1)
Balance (shares) at Dec. 31, 2019	77,000,000	77,000,000						357,000,000							70,980,203						1,000	1,000				1,000	1,000
Balance at Dec. 31, 2019	$ 32,578	$ 0	$ 6,389	$ 28,296	$ (1,706)	$ 129
Balance at Dec. 31, 2019	32,449							$ 8,437	$ 2	$ 0	$ 4,479	$ 3,972	$ (16)	$ 7,240	$ 0	$ 561	$ 6,679	$ 8,101	$ 1,679	$ 6,422	$ 1,320	$ 0	$ 1,111	$ 210	$ (1)	$ 2,797	$ 0	$ 2,308	$ 493	$ (4)
Long-term income tax receivable	$ (530)						$ (530)